<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>作业</title>
</head>
<body>
<script src="homework.js"></script>
<script>
    // for (let i = 1; i < 10; i++) {
    //     console.log("输入" + i + " 获取" + getNumber(i));
    // }
    // getDays(2001,11);
    // let arr=[1,4,2,5];
    // printArr(arr);
    // getMax("12abc32");
    // printTime("aaaabbfdsfdsfds3423");
    for (let i = 1000; i < 9999; i++) {
        digitalBlackHole(i);
        document.write("<br>");
        console.log("\n");
    }
</script>

</body>
</html>